<template>
  <el-form size="small">
    <el-form-item>
      <el-radio :label="1" v-model="radioValue"> 不填，允许的通配符[, - * /] </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio :label="2" v-model="radioValue"> 每年 </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio :label="3" v-model="radioValue">
        周期从
        <el-input-number v-model="cycle01" :min="fullYear" :max="maxFullYear - 1" /> -
        <el-input-number v-model="cycle02" :min="cycle01 + 1" :max="maxFullYear" />
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio :label="4" v-model="radioValue">
        从
        <el-input-number v-model="average01" :min="fullYear" :max="maxFullYear - 1" /> 年开始，每
        <el-input-number v-model="average02" :min="1" :max="10" /> 年执行一次
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio :label="5" v-model="radioValue">
        指定
        <el-select clearable v-model="checkboxList" placeholder="可多选" multiple :multiple-limit="8">
          <el-option v-for="item in 9" :key="item" :value="item - 1 + fullYear" :label="item - 1 + fullYear" />
        </el-select>
      </el-radio>
    </el-form-item>
  </el-form>
</template>

<script setup>
  import { computed, watch } from 'vue';

  const emit = defineEmits(['update']);
  const props = defineProps({
    cron: {
      type: Object,
      default: () => {
        return {
          second: '*',
          min: '*',
          hour: '*',
          day: '*',
          month: '*',
          week: '?',
          year: '',
        };
      },
    },
    check: {
      type: Function,
      default: () => {},
    },
  });
  const fullYear = ref(0);
  const maxFullYear = ref(0);
  const radioValue = ref(1);
  const cycle01 = ref(0);
  const cycle02 = ref(0);
  const average01 = ref(0);
  const average02 = ref(1);
  const checkboxList = ref([]);
  const checkCopy = ref([]);
  const cycleTotal = computed(() => {
    cycle01.value = props.check(cycle01.value, fullYear.value, maxFullYear.value - 1);
    cycle02.value = props.check(cycle02.value, cycle01.value + 1, maxFullYear.value);
    return cycle01.value + '-' + cycle02.value;
  });
  const averageTotal = computed(() => {
    average01.value = props.check(average01.value, fullYear.value, maxFullYear.value - 1);
    average02.value = props.check(average02.value, 1, 10);
    return average01.value + '/' + average02.value;
  });
  const checkboxString = computed(() => {
    return checkboxList.value.join(',');
  });

  watch(
    () => props.cron.year,
    (value) => changeRadioValue(value),
  );

  watch([radioValue, cycleTotal, averageTotal, checkboxString], () => onRadioChange());
  function changeRadioValue(value) {
    if (value === '') {
      radioValue.value = 1;
    } else if (value === '*') {
      radioValue.value = 2;
    } else if (value.indexOf('-') > -1) {
      const indexArr = value.split('-');
      cycle01.value = Number(indexArr[0]);
      cycle02.value = Number(indexArr[1]);
      radioValue.value = 3;
    } else if (value.indexOf('/') > -1) {
      const indexArr = value.split('#');
      average01.value = Number(indexArr[1]);
      average02.value = Number(indexArr[0]);
      radioValue.value = 4;
    } else {
      checkboxList.value = [...new Set(value.split(',').map((item) => Number(item)))];
      radioValue.value = 5;
    }
  }
  function onRadioChange() {
    switch (radioValue.value) {
      case 1:
        emit('update', 'year', '', 'year');
        break;
      case 2:
        emit('update', 'year', '*', 'year');
        break;
      case 3:
        emit('update', 'year', cycleTotal.value, 'year');
        break;
      case 4:
        emit('update', 'year', averageTotal.value, 'year');
        break;
      case 5:
        if (checkboxList.value.length === 0) {
          checkboxList.value.push(checkCopy.value[0]);
        } else {
          checkCopy.value = checkboxList.value;
        }
        emit('update', 'year', checkboxString.value, 'year');
        break;
    }
  }
  onMounted(() => {
    fullYear.value = Number(new Date().getFullYear());
    maxFullYear.value = fullYear.value + 10;
    cycle01.value = fullYear.value;
    cycle02.value = cycle01.value + 1;
    average01.value = fullYear.value;
    checkCopy.value = [fullYear.value];
  });
</script>

<style lang="scss" scoped>
  .el-input-number--small,
  .el-select,
  .el-select--small {
    margin: 0 0.2rem;
  }
  .el-select,
  .el-select--small {
    width: 18.8rem;
  }
</style>
